Humidifier



FIG. 1 is a perspective view of a humidifier showing front, right and top portions of my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is another perspective view of the humidifier, displaced angularly from that of FIG. 1, showing front, left and top portions thereof.

The broken lines in FIG. 1, FIG. 6, and FIG. 8 depict portions of the humidifier that form no part of the claimed design. 

The ornamental design for a humidifier, as shown and described. 